Gaseous-fuel-mixing device



Sept. 16, 1930. A. DEFRANCE Erm.

GASEOUS FUEL IIXING DEVICE Filed arch '26, 1926 1. ...HW F

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Patented Sept. 15, 193@ UNITED STATES PATEN @FFCE ABEL DEFRANCE, OF COURBEVOIE, AND EUGENE BESTEL AND MAURICE PESTEL, OF SOISSONS, FRANCE GASEOUS-FUEL-MIXING DEVICE Application lefl March 26, 1926, Serial No. 97,753, and in France April 6, 1925.

The present invention has for its object improvements in carbureters and particularly in carbureters L{or heavy hydrocarbons in order to eiect a perfect atomization of the gasitied mixture furnished by the carbureter.

These improvements utilize a method which consists in that the carburized mixture is passed into narrow ducts which are separated or divided by parallel partitions.

The invention consists mainly in the arrangement of a rotary valve which is divided in narrowv lamellar passages and which are arranged ior the distribution oi the mixture of air and hydrocarbons, said valve being arranged between the carburetor and the motor for controlling the admission ot the mixture ot the cylinders of the motor.

rlhe invention consists further in the arrangement of a block equipped with lamellar passages also arranged between the carburetor and the motor, said block having transversally arranged at least one duct which is circular in cross section for passing a hot fluid through it in order to heat said block and thereby to evaporate the small drops or bubbles ot liquid hydrocarbons which are suspended or entrained in the air.

This device has iurther the advantage that it can be easily and quickly inserted between the carbureter and the duct through which the motor draws-in the gaseous mixture, said inserted and exchangeable device comprising a rotary valve forming lamellar passages, to which are corresponding lamellar passages in a block, said block being Jurther traversed (penetrated) by a duct conveying heating gases.

ln the accompanying drawing:

Figs. 1 and 2 show an embodiment of the invention in two sectional planes, that is two sections being laid vertical to each other.

The apparatus comprises a casing a which has the end flanges c and c1 for inserting the casing exchangeably into the pipe line leading from the carburetor to the motor.

At the upper part of the casing a there is a rotary valve arranged for controlling the admission of the gas mixture to the motor. rlhe body of this rotary valve is divided by lamellar partitions e into parallel slot-like passages Jfor the gas mixture. This valve comprises walls or partitions arranged parallel to each other and forming between themselves passages Zi for the gas mixture. These walls or partitions c constitute one single piece (or are integral with) the valve member y" which is disposed diametrally as shown in Fig. 2. The rotary valve could also consist ot a cylindrical block in which channels are arranged.

ln the lower part of the casing a respecffljr. between the carbureter and the valve a there is a block arranged which is also divided by a lamellar partition b into a series of narrow passages throughwhich the gas and air mixture is passed from the carbureter to the valve. This block is divided by a comparatively thick partition wall a" (as best shown in Fig. 2) and this partition wall a" is traversed by a tube Z which serves for heating said blocks, and those lamellar passages through which the hot fluid passes in order to evaporate the small drops or bubbles of hydrocarbons which are entrained in the mix- "ure instead of one dividing wall a which is penetrated by the tube d, a plurality of such walls and tubes may be arranged.

What we claim as our invention and desire to secure by Letters Patent is A device for facilitating the Carburation of heavy hydrocarbons in internal combustion engines, including a casing, a throttling member rotatably disposed transversally of said casing, a diametrical plate on said throttling member and transverse partitions arranged on both sides ci said diametrical plate and spaced for forming between same passages arranged in the longitudinal direction of the chamber.

In testimony whereof we have signed our names to this specification.

ABEL DEFRANCE. EUGENE PESTEL. MAURICE PESTEL. 

